Carburetor



. W. H. COLLlER.

CARBURETOR.

APPLICATION FILED JUNE 7, 19m.

194.26,? 1 4 Patented Aug. 22, 1922.

IN VEN TOR. IV ESSES: W 11,. ,1, N- CM WM W A TTORNEYS.

warren STATES? WILLIAM H. COLL, O15 SANDUSKY; QHIU.

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Specification of Letters Patent.

Patented Aug. 22, 11922.

Application filed June 7, 1917., Serial No. 173,303.

To aZZwIw m it may concern Q Be it known that 1, WILLIAM H. COLLIER, a citizenof the United States of America, and a resident of Sandusky, Erie County, State of Ohio, have invented Improvements in Carburetors, of which the following is a' specification. 7

My invention relates to improvements in carburetors, and comprises improved means whereby a very thorough mixture of air with the liquid or atomized fuel may be obtained; also other features, as hereinafter described and particularly pointed out in the appended claims.

The object of my invention is to produce a simple and inexpensive carburetor, which shall be highly efficient, shall produce a very thorough, intimate, and uniform mixture of fuel and air, and. shall be compact and free from liability to derangement.

I will now proceed to describe my invention withreference to the accompanying drawing, in which a carburetor embodying v my invention is illustrated, and will then point out the novel features in claims.

In said drawings:

Figure 1 shows a central vertical section of my improved carburetor, and Figure 2 shows a horizontal section thereof on the line .22 of Figure 1.

My improved carburetor, in the form shown, comprises a top member 1, having secured to it a bowl member 2 providedwith a central tubular portion 3, having the form of a Venturi tube, and secured to the top member 1; the bore a of this top member 1 constituting a continuation of the Venturi tube, and containing the usual butterfly throttle valve 5., Within the bowl of the carburetor is the usual float 6, controlling an inlet valve 7, illustrated diagrammatically.

Air is admitted to this central mixing chamber (Venturi tube) through a plurality of lateral passages, 9, arranged tangentially, as shown particularly in'Figure 2. Whereby a whirling motion is imparted to the air entering said mixing chamber; a motion which conduces greatly toward the formation of a thorough mixture with the fuel enterin said mixing chamber, as described present y. v

For the admission of fuel to the mixing chamber said chamber is provided with a central nozzle 10, the bore of which communicates, through a lateral duct 11, and a vertical pasa ge 12, with the interior of the carburetor bowl. A. drain cook 13 is also provided, which communicates with the lateral duct-11. v

For idling and similar low-speed lightwork. operation, a separate nozzle is prothrough the tube 15, and air or vapor from the upper portion of the bowl, the mixture discharging through the duct 14 into the space beyond the throttle valve.

It will be obvious that owing to the whirl ing motion given to-the air entering through the tangential pamages 9, which whirling air currents circulate around the nozzle 10 and in so doing mix with each other and with the fuel jet projected from said nozzle, a very thorough mixture of the air with the fuel is produced.

This application involves, in part, features "vided, consisting of a duct 14, boredthrough disclosed, described, and claimed in my companion application, Serial No. 173301, filed of even date herewith.

What I claim is :e 1. A carburetor comprising a member provided with a normally vertical mixing pas- 1 sage, having its walls'contracted at an intermediate point to form a V'enturi throat, a. plurality of lateral air inlet passages leading tangentially into the lower part of said mixing passage, and a fuel jet nozzle centrally disposed within said mixing passage and projecting upwardly into said Venturi throat portion. 7

2. In a carburetor, a bowl member having a central mixing passage and a surrounding annular fuel space, and having beneath that fuel space a plurality of lateral air inlet" 1 the outsideto said passages leading from central mixing passage and arranged substantially tangentially with respect to said mixing passage, and a nozzle centrally dis: posed within said mixing passage and connected to said fuel space.

3. In a, carburetor, a bowl member having a central mixing passage and a surrounding annular fuel space, and having 10 through the bottom of the bowl member an through one of the walls between said inlet passages. v I

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

WVILLIAM H. COLLIER.

Witnesses:

W. C. TUCKER, L. E. CURTIS. 

